View Full Version : what's actually channelised STM-1 ?
coursekec
2010-08-04, 12:14 AM
what's actually channelised STM ? One of the E1 interface card that we have from ZTE vendor supports channelised STM-1 ? Is it different from the normal STM-1 ?
thanks in advance..
it is 63 E1 packed into one STM-1 interface.
To upper layer, this interface looks like 63 E1 interfaces, so you should threat them as
either PDH (31 times 64 TS) or ATM/E1 and do IMA etc.
Non-ch STM-1 takes (almost) all 155 Mbit/sec in one pipe.
br
s52d
what's actually channelised STM ? One of the E1 interface card that we have from ZTE vendor supports channelised STM-1 ? Is it different from the normal STM-1 ?
thanks in advance..
coursekec
2010-08-11, 10:10 PM
CAn i have a channelized STM-1 containing only 4 E1's ?
Of course... We usually equip our super PDH radios with STM-1 interfaces only to avoid unnecessary cabling of E1s. So you can have 1 - 63 E1s over one pair of optical or electrical cables.
Cost_Reducer
2010-08-14, 09:31 PM
Does the channelized STM-1 contain the specific SDH overhead bytes?
It is possible to connect your super-PDH equipment to a MUX?
I think that a channelized STM-1 is a normal STM-1 that only contains VC12 containers...right?
Does the channelized STM-1 contain the specific SDH overhead bytes?
It is possible to connect your super-PDH equipment to a MUX?
I think that a channelized STM-1 is a normal STM-1 that only contains VC12 containers...right?
Yes to all three questions.
Cost_Reducer
2010-08-16, 11:23 PM
ok, actually a normal STM-1 but with a new defined name:D
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